Match the geometric sequence at the left with its explicit and re formulas at the right. 5, 20, 80, 320,... an= 5(3)"-1; an= 3(a,- 1); a1 = 5 5, 555 an = 5(20)n -1; a,= 20(a, – 1); a1 = 5 %3D 3 9 27 ... 5, 15, 45, 135, ... an= 5(4)"-1; an= 4(an – 1); a1 == 5 %3D %3D 5-1 5, 100, 2,000, 40,000... 2. Timothy makes reduced copies of a photograph that has an actua 8 in. Each time he presses the reduce button on the copier, the ca by 12%. What formula shows the pattern for the size of each cop photograph as it is reduced? What is the length of the photograp Timothy presses the reduce button 5 times? Round to the nearest %D a, 8(0.88)-1; 4.8 in. 8(0.88)"; 4.2 in. a,-8(0.12)-1; 1.9 in. O a,-8(1.12)"; 7.1 in. 3. Write a functi
Match the geometric sequence at the left with its explicit and re formulas at the right. 5, 20, 80, 320,... an= 5(3)"-1; an= 3(a,- 1); a1 = 5 5, 555 an = 5(20)n -1; a,= 20(a, – 1); a1 = 5 %3D 3 9 27 ... 5, 15, 45, 135, ... an= 5(4)"-1; an= 4(an – 1); a1 == 5 %3D %3D 5-1 5, 100, 2,000, 40,000... 2. Timothy makes reduced copies of a photograph that has an actua 8 in. Each time he presses the reduce button on the copier, the ca by 12%. What formula shows the pattern for the size of each cop photograph as it is reduced? What is the length of the photograp Timothy presses the reduce button 5 times? Round to the nearest %D a, 8(0.88)-1; 4.8 in. 8(0.88)"; 4.2 in. a,-8(0.12)-1; 1.9 in. O a,-8(1.12)"; 7.1 in. 3. Write a functi
Chapter9: Sequences, Probability And Counting Theory
Section9.1: Sequences And Their Notations
Problem 4SE: What happens to the terms an of a sequence when there is a negative factor in the formula that is...
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Transcribed Image Text:Match the geometric sequence at the left with its explicit and re
formulas at the right.
5, 20, 80, 320,...
an= 5(3)"-1; an=
3(a,- 1); a1 = 5
5,
555
an = 5(20)n -1; a,= 20(a, – 1); a1 = 5
%3D
3 9 27
...
5, 15, 45, 135, ...
an= 5(4)"-1; an= 4(an – 1); a1 == 5
%3D
%3D
5-1
5, 100, 2,000, 40,000...
2. Timothy makes reduced copies of a photograph that has an actua
8 in. Each time he presses the reduce button on the copier, the ca
by 12%. What formula shows the pattern for the size of each cop
photograph as it is reduced? What is the length of the photograp
Timothy presses the reduce button 5 times? Round to the nearest
%D
a, 8(0.88)-1; 4.8 in.
8(0.88)"; 4.2 in.
a,-8(0.12)-1; 1.9 in.
O a,-8(1.12)"; 7.1 in.
3. Write a functi
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